<!doctype html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport"
        content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
</head>
<body>
<div id="demo">
  <h1>数据响应化</h1>
  <p>{{obj.foo}}</p>
</div>

<script src="../../dist/vue.js"></script>
<script>
  // 创建实例
  const app = new Vue({
    el: '#demo',
    data: { obj: { foo: 'foo', bar: 'bar' } },
    mounted() {
      setTimeout(() => {
        this.obj.foo = 'fooooo'
      }, 1500);
    }
  });

</script>

</body>
</html>
